# Development of L10-ordered FePt with low damping and large perpendicular magnetic anisotropy by engineering the nanostructure

https://mdr.nims.go.jp/datasets/60955540-f737-46b3-932f-3d18df25ddf1

## File

- [FePtSTO_MainManuscript_FirstRevision.pdf](https://mdr.nims.go.jp/filesets/8a056877-472f-4b38-8854-2105a9de0c95/download) ([Detail](https://mdr.nims.go.jp/filesets/8a056877-472f-4b38-8854-2105a9de0c95.md))
- [FePtSTO_Supplementary.pdf](https://mdr.nims.go.jp/filesets/3e29c92a-5c6d-4386-a805-7143f0ce9d8d/download) ([Detail](https://mdr.nims.go.jp/filesets/3e29c92a-5c6d-4386-a805-7143f0ce9d8d.md))

## Id

60955540-f737-46b3-932f-3d18df25ddf1

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-02-06T01:11:36.290545Z

## Updated at

2025-02-06T07:30:07.971698Z

## Published at

2025-02-06T07:30:08.948327Z

## Doi

https://doi.org/10.48505/nims.5249

## First published url

https://doi.org/10.1063/5.0246369

## Date published

2025-01-13

## Recorded date published

2025-1-13

## Resource type

journal_article

## Manuscript type

accepted_manuscript

## Collection



## Title

- title: Development of L10-ordered FePt with low damping and large perpendicular
    magnetic anisotropy by engineering the nanostructure
  title_type: original
  lang: en

## Description

- description: 'THz spintronics is an emergent area of research aimed at bridging
    the gap between fifth- and sixth-generation wireless telecommunications by utilizing
    spintronic devices such as magnetic spin torque oscillators as a source of low
    powered THz emission. The realization of such devices using ferromagnetic metal
    thin films requires magnetic materials with both large perpendicular magnetic
    anisotropy (PMA) and low Gilbert damping constants. In this Letter, we report
    on the development of L10-ordered FePt with an effective Gilbert damping constant
    as low as 0.033. Using time-resolved magneto-optical Kerr effect, we characterized
    the magnetization dynamics of continuous L10-ordered FePt grown on MgO and SrTiO3
    substrates. We found that fewer misfits and improved ordering in FePt lead to
    a reduced Gilbert damping constant due to reduced electron scattering but that
    FePt grown on SrTiO3 also shows robust perpendicular magnetic anisotropy. '
  description_type: abstract
  lang: und

## Creator

- name: P. D. Bentley
  role: author
  orcid: https://orcid.org/0000-0003-4160-2449
- name: Y. Sasaki
  role: author
  orcid: https://orcid.org/0000-0002-9192-4799
- name: I. Suzuki
  role: author
  orcid: https://orcid.org/0000-0002-8932-8226
- name: S. Isogami
  role: author
  orcid: https://orcid.org/0000-0001-7230-6090
- name: Y. K. Takahashi
  role: author
  orcid: https://orcid.org/0000-0001-9197-7236
- name: H. Suto
  role: author
  orcid: https://orcid.org/0000-0003-4387-5862

## Contact agent



## Publisher

organization: AIP Publishing

## Managing organization



## Keyword

- subject: FePt
  schema: not_defined
- subject: spin dynamics
  schema: not_defined
- subject: terahertz spintronics
  schema: not_defined
- subject: magnetic metal thin film
  schema: not_defined

## Rights

- description: 'This article may be downloaded for personal use only. Any other use
    requires prior permission of the author and AIP Publishing. This article appeared
    in P. D. Bentley, Y. Sasaki, I. Suzuki, S. Isogami, Y. K. Takahashi, H. Suto;
    Development of L1<sub>0</sub>-ordered FePt with low damping and large perpendicular
    magnetic anisotropy by engineering the nanostructure. Appl. Phys. Lett. 13 January
    2025; 126 (2): 022404 and may be found at https://doi.org/10.1063/5.0246369.'
  identifier: http://rightsstatements.org/vocab/InC/1.0/

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: Applied Physics Letters
  issn: '00036951'
  volume: '126'
  issue: '2'

## Conference



## Related item



## Funding

- identifier: JPMJC22C3
  funder_name: Core Research for Evolutional Science and Technology
- identifier: JPMXS0320230032
  funder_name: Ministry of Education, Culture, Sports, Science and Technology
- identifier: JP21K14218
  funder_name: Japan Society for the Promotion of Science
- identifier: JP18H03787
  funder_name: Japan Society for the Promotion of Science

## Instrument



## Instrument operator



## Instrument managing organization



## Measurement method



## Specimen



## Chemical composition



## Structure for specimen



## Structural feature for specimen



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## Process for specimen treatment



## Computational method



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## Fileset

- id: 8a056877-472f-4b38-8854-2105a9de0c95
  filename: FePtSTO_MainManuscript_FirstRevision.pdf
  content_type: application/pdf
  size: 4620210
  md5: 97f250a2530ed966d39665b231983e1d
- id: 3e29c92a-5c6d-4386-a805-7143f0ce9d8d
  filename: FePtSTO_Supplementary.pdf
  content_type: application/pdf
  size: 623041
  md5: ab268f84ca73c83991388bc026e4d378

## Thumbnail

fileset_id: 8a056877-472f-4b38-8854-2105a9de0c95
filename: FePtSTO_MainManuscript_FirstRevision.pdf